Re: FTGL.h not found

[Thomas Treichl]

Thomas Treichl schrieb:
> John W. Eaton schrieb:
> > |    configure: WARNING: FTGL library not found. Native renderer will 
> > not have | on-screen text
> > | | and
> > | |    fltk backend libs:
> > | | I removed the ftgl.h entry and then the test succeeded and 
> > FTGL/ftgl.h is used | correctly:
> > | |    fltk backend libs: -lfltk_gl -framework AGL -framework OpenGL 
> > -lfltk | -framework Carbon -framework ApplicationServices
> > | | I have created a normal patch because my changes are not a 
> > solution for this | (that's why I don't send a changeset) ...
> >
> > I think we need to check for ftgl.h, at least if FTGL/ftgl.h is not
> > found since I don't see any reason to assume that ftgl.h will always
> > be installed in a directory called FTGL on all systems.  Looking at
> > the other checks for header files, I assumed that listing both in the
> > AC_CHECK_HEADERS macro would be OK, and I don't understand why it is
> > failing for you.
>
> I do now. This one was really tricky ;) The check for FTGL/ftgl.h is 
> good, the test for ftgl.h fails. With this fail the variable 
> warn_graphics ist set to the string
>
>   warn_graphics="FTGL library not found. Native renderer will not have 
> on-screen text"
>
> The variable warn_graphics is used later for the test of fltk - all fltk 
> tests are good but warn_graphics is still set. Finally we get to the 
> line 730 in configure.in
>
>   if test "x$warn_graphics" = "x" ; then
>     ->good
>   else
>     ->bad
>
> and I get into ->bad because the check for ftgl.h failed (long before).
>
> My solution resp. my suggestion would be to initialize warn_graphics 
> once again for the test of fltk. A changeset for this is attached.
>
> Regards,
>
>   Thomas


Ooops, just a portion of it in the changeset?! Here is the second, sorry.

# HG changeset patch
# User Thomas Treichl <address@hidden>
# Date 1215808058 -7200
# Node ID 55f6ad8e81d325673ca9e55d47c193dfc54689aa
# Parent  fcc70f30fe31cd4bc694ce773df17bb69131f8c1
Fixed test for FLTK if ftgl.h is not found

diff --git a/configure.in b/configure.in
--- a/configure.in
+++ b/configure.in
@@ -714,6 +714,7 @@ if test "$FLTK_CONFIG" = "no" ; then
 if test "$FLTK_CONFIG" = "no" ; then
   warn_graphics="fltk library (www.fltk.org) not found.  Native graphics will 
be disabled."
 else
+  warn_graphics="" # may be set to a string if ftgl.h is not found
   FLTK_CFLAGS="`$FLTK_CONFIG $fltkconf_args --use-gl --cflags`"
   FLTK_LDFLAGS="`$FLTK_CONFIG $fltkconf_args --use-gl --ldflags`"